EVGA X299 DARK Owner's Manual page 68

EVGA X299 DARK (151-SX-E299)
The fault tolerance works a bit differently in RAID10 than in others because the array
has nodes with internal redundancy. In other words, although a four drive array can lose
two drives and remain operational, it greatly depends on WHICH two drives fail. If
both drives from the same node fail, then half of the data is gone and the array has failed.
However, every node, regardless of the number of total nodes, can suffer one internal
failure with no adverse effects.
RAID 10 (4 Drive)
P-DRIVE1 P-DRIVE2
P-DATA-A P-DATA-A
L-Drive = DATA-A
L-Drive = DATA-AB
P-DRIVE1 P-DRIVE2
P-DATA-A P-DATA-A
L-Drive = DATA-A
L-Drive = DATA-AB
P-DRIVE1 P-DRIVE2
P-DATA-A P-DATA-A
L-Drive = DATA-A
L-Drive = DATA-AB
While the X299 DARK controller will support a four or six drive RAID10 array,
RAID10 can scale indefinitely provided the controller supports more drives. Every pair
of drives adds an additional mirrored node, which increases the theoretical number of
failures the array can suffer before a loss of data occurs. However, an array can still fail
due to both drives on a node failing.
P-DRIVE3 P-DRIVE4
P-DATA-B P-DATA-B
L-Drive = DATA-B
P-DRIVE3 P-DRIVE4
P-DATA-B P-DATA-B
L-Drive = DATA-B
P-DRIVE3 P-DRIVE4
P-DATA-B P-DATA-B
L-Drive = DATA-B
P-DRIVE1 P-DRIVE2
P-DATA-A P-DATA-A
L-Drive = DATA-A
L-Drive = DATA-AB
P-DRIVE1 P-DRIVE2
P-DATA-A P-DATA-A
L-Drive = DATA-A
L-Drive = DATA-AB
P-DRIVE1 P-DRIVE2
P-DATA-A P-DATA-A
L-Drive = DATA-A
L-Drive = DATA-AB
L-DRIVE = ≃ 2TB
P-DRIVE3 P-DRIVE4
P-DATA-B P-DATA-B
L-Drive = DATA-B
P-DRIVE3 P-DRIVE4
P-DATA-B P-DATA-B
L-Drive = DATA-B
P-DRIVE3 P-DRIVE4
P-DATA-B P-DATA-B
L-Drive = DATA-B
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